Michael henry collins



.i 4 S @with there autres @time Letters Patent No. 74,049, dated February 4, 1868.

ldltOVEllNT Dl LAMPS.

fitte Sighele nicht te it tigen Etnies htten am' mating @txt tf tige .time

TOALL PERSONS T0 WHOM THESE PRESENTS MAY COME:

Be it known that I, MICHAEL HENRY COLLINS, of Chelsea, in the county of Sulolk, and State of Massachusetts, have invented an Improved Lamp; and I do hereby declare the same to be fully descrihed inthe following specification, and represented in the accompanying drawings, of Which- Figure 1 denotes a side elevation, and

Figure 2 a transverse and vertical section oi' it.

Figure 3 is a top view,

Figure 4 a side elevation, and

Figure 5 a transverse section of those parte of, the lamp which project above the oil-reservoir, and operate with and lin the glass chimney of the lamp. Q

Figure 6 is atop view of the auxiliary supporter, on and by which the dome-shaped chimney-rest is sustained.

The main purpose I have had in-view in the invention of my said lamp has been to maintain the glass chimney at and for some distance above its base, while the lamp may be in nso, at so' low a temperature as to enable such chimney to be grasped by the hand of a person, and readily removed from the parts supporting it, without danger of burning or uncomfortably heating the fingers or hand of` the individual. I have also sought, by mezms applied to the inner surface of the chimney, tc support and hold the chimney in position, or down upon its rest or seat, without the use of a lip and afscreiv, or one or more spring-catlehes or other devices, which have to be rs. moved 'oy mand or manipulated before thechimncy can 'ee raise-don' its seat er rest. have further sought to so apply the chimney and its co-operative parte together, and with the wick-Stube, as te enable them bodily, or all of them, without the chimney, to be easily removable from the said tube, for any purpose, particularly for gaining ready access to the wiclt for trimming it, as occasion may require.

In the drawings, A. denotes the lamp-body or reservoir, for holding' the kerosene-eil or duid used for the generationol light. B is the wick-tube, which passes through and is fastened to a hollow cap, @screwed into the neck of the lamp-body, or a metallic annular cap, a, cemented Yon the neck of the said body. A shaft, e, goes through the cap C, and not only carries a milled button or head, d, fixed on its inner end,`but is extended through and supports one or more spur or toothed Wheels, e, to enter the wick-tube and wick ivhen therein, and serve, when revolved by the shaft, to either raise or lower the wick in and with respect to lthe said tube. Oom centrically with the cap C, and extending from and fixed to it, or extended from and fixed to the wick-tube, is a perforated disk or shelf, S. 0n this shelf` or' auxiliary chimney-supporter S the main chimney-supporter D is disposed or rests. The said part, D7 encompasses and slips on the Wick-tube B, and is dome-shaped or concaveconvex, so as t'o extend up into the chimney when resting on it, at er hear its circumference. The chimney may embracethe said part D, and rest directly upon the part S, but I prefer to have it rest upon the part D, which I form fornminous, or provide with a series of nir-pussages, gg, so arranged as te cause air, when the lamp may he in operation, to pass through them, and against the' inner surface of the lower portion of the glms chimney, viz, that part which is below the air-dcliector or cone F and its Hauch, and this preparatory to such air, either in part or in whole, being made to pass through the lame-passage, or either or any of the air-passages of the umbelliferous cone or its-danch. The air which is thus caused to dow against the lower part of the chimney nids in keeping it nt a. very low temperature, such as will enable the chimney at such part, when the lamp is in operation, to he grasped with impunity by the hand of a person. Another advantage ot'vthis elevation ci' this chimney-rest or part D up within the`chimney, in manner described or represented, is, that it then operates as a rellector, to disperse through the sidesoi the glass chimney the rays oi' light which may fall down from the flame, and upon the elevated surface of the part D. The said elevated part of the partition D will lalso dedect outwardly-any dirt or carbonaceous mutter which may fall upon it from the Wick. This umbelliferous cone or air-deecter is arranged over the part D and the wick-tube, and is supported in position by arms it, projecting upward from the part D or the Wiclotube. The cone or air-dedoetor has a. amefpassage, a', made in. and extend ing across-its concave-convex bulb, Z2', such bulb being surrounded by and raised 0n a concave-convex anntzlus, c', from'which a thin umhelliferous anch or diaphragme?, extends, in manner es represented, it being concert: tric with and extended around and from the uir-deilector, and laterally, with e slight downward inclination -I do not intend to limit my invention to such c. form of, chimney overthe ianch.

toward und guinst the innersurface o f the'glass chimney E. The xmch d has a. series of slits or air-passages N h hT-tc., :Lr-ranged in it, in directions radiating fr'cm the axis of the cone or ar-d'eector. A flnnch, d', bezahlen-performing other functions, serves lto steady thechimncy, and whee bearing against the inner surface of the' lutter, the cnch will operate by friction to hold the chimney down upon its seat or rest. '.lhnt part of I the chimney E which reaches below the cnchlZ'-, I construct cylindrical on its vinner surface, and I usually form 'tho restv of the chimney, or that part which is over the cnch,in manner 'as represented in the drawings, although What I claim as my invention or impljovementi's' ns follow; that islf claim the combination ofthe.nuxilary'supportcr S or its equivalent'withthe chimney-rest and the chimney-holding' friction-cone o' air-deflect'or, arranged as described', and so connectcdas to bc cnpnble'of b'feing' slipped together, and with the chimney, on'nd off the.wick-tube, and away fr oni 'the supporter,- for the pui'pose of enabling access to lne had Vto the wick for trimming it,- Aas occasion` may require. t e e M.. H. COLLINS. Witnesses:

R.' Hf EDDY, F.- I. HALE, Jr. 

